Multifunctional spring assembling device for plastic pump head

Abstract

The utility model relates to the technical field of spring assembling devices, in particular to a multifunctional spring assembling device for a plastic pump head, which comprises a workbench, a support arranged at the top of the workbench, a limit guide mechanism arranged at the top of the support and capable of longitudinally reciprocating, and a feeder longitudinally arranged at the bottom of the limit guide mechanism. A guide hole is longitudinally formed in the feeder, and a feeding pipe capable of communicating with the interior of the guide hole is obliquely arranged on one side of the feeder; a second sleeve capable of longitudinally moving along the interior of the guide hole is arranged at the top of the feeder, a second elastic piece is arranged outside the second sleeve, and the second elastic piece can drive the second sleeve to reset; and a guide rod capable of longitudinally moving is arranged in the second sleeve. The spring can be accurately installed in the pump head, bending deformation caused by non-concentrated stress during installation of the spring is avoided, and therefore the assembly quality of the pump head is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of spring assembly devices, specifically to a multifunctional spring assembly device for plastic pump heads. Background Technology

[0002] The plastic pump head spring assembly device is an automated machine specifically designed for the precise installation of springs into the interior of plastic pump heads. Utilizing an advanced mechanical structure and a sophisticated control system, this device efficiently and accurately completes the spring conveying, positioning, and installation process. By optimizing the operation process and reducing manual intervention, it improves assembly efficiency and product quality while lowering production costs. This device is widely used in plastic pump head production lines and is a key piece of equipment for enhancing production automation.

[0003] Chinese Patent Publication No. CN115026552A discloses a spring assembly device, belonging to the technical field of spring assembly equipment. The spring assembly device includes a positioning component, a support base, a drive mechanism, and a guide sleeve. The positioning component is used to position the spring to be installed. The support base is disposed on one side of the positioning component, and the drive mechanism is disposed on the support base. The guide sleeve is disposed on the drive mechanism and located above the positioning component. The guide sleeve has a vertically arranged tapered hole, the diameter of the upper end of the tapered hole being larger than the diameter of the lower end. The drive mechanism can push the spring in the tapered hole into the mounting hole of the part. This spring assembly device can assemble the spring into the hole, is convenient to use, and helps to improve assembly efficiency.

[0004] The spring assembly device described in the aforementioned patent document operates by placing the spring inside a guide sleeve, and then using a drive mechanism to move the guide sleeve downwards, bringing it into contact with the part. The driver then moves the pressing part downwards, pressing the spring until it is fully inserted into the part. However, existing spring assembly devices cannot guarantee accurate spring insertion into the part during spring insertion, leading to misalignment or deformation during assembly. Therefore, a multifunctional spring assembly device for plastic pump heads is provided. Utility Model Content

[0005] To address the aforementioned issues, a multifunctional spring assembly device for plastic pump heads is provided. A cylinder drives a first sleeve to move downwards, causing it to pull a guide rod through a spring inside a guide hole and extend downwards until the guide rod is inserted into the pump head. Subsequently, the bottom of the first sleeve presses down on the top of a second sleeve, forcing the second sleeve to move downwards along the guide rod until it presses the spring inside the guide hole into the pump head. This ensures precise installation of the spring inside the pump head, preventing uneven stress and bending deformation during installation, thus guaranteeing the assembly quality of the pump head.

[0006] To address the problems of existing technologies, this application provides a multifunctional spring assembly device for plastic pump heads, including a worktable, a bracket mounted on the top of the worktable, a limiting guide mechanism mounted on the top of the bracket capable of longitudinal reciprocating movement, and a feeder longitudinally mounted at the bottom of the limiting guide mechanism. The feeder has a guide hole longitudinally arranged inside, and a feed pipe inclined on one side of the feeder that communicates with the inside of the guide hole. A second sleeve capable of longitudinally moving along the inside of the guide hole is mounted on the top of the feeder. A second elastic element is mounted on the outside of the second sleeve, capable of driving the second sleeve to reset. A guide rod capable of longitudinal movement is mounted inside the second sleeve. A cylinder is mounted on the top of the bracket, with the output end of the cylinder fixed to the first sleeve. The top end of the guide rod is installed inside the first sleeve. A first reset spring for pushing the guide rod to reset is mounted inside the first sleeve.

[0007] As one technical solution of this application, the bottom of the feeder is hinged with two sets of anti-detachment blocks that can move closer to or further away from each other.

[0008] As one technical solution of this application, the feeder has mounting grooves on both sides of its bottom for installing anti-detachment blocks. The mounting grooves are horizontally provided with pins, and the anti-detachment blocks are movably installed on the pins.

[0009] As one technical solution of this application, two sets of second reset springs for pushing the anti-detachment block to reset are horizontally arranged on both sides of the mounting groove.

[0010] As one technical solution of this application, the limiting guide mechanism includes a movable frame horizontally installed on a first sleeve, with second sliding sleeves installed at both ends of the movable frame, a sliding rod slidably installed inside the second sliding sleeve, and a limiting member fixed outside the sliding rod for it to fall out of the second sliding sleeve, the limiting member being located at the top of the sliding rod.

[0011] As one technical solution of this application, the bottom end of the slide rod is horizontally provided with a mounting seat for installing a feeder; a first elastic element for pushing the mounting seat to move longitudinally is sleeved on the slide rod.

[0012] As one technical solution of this application, the top of the bracket is provided with a first sliding sleeve on both sides near the limiting guide mechanism, which can slide and cooperate with the sliding rod, and the second elastic element is slidably disposed on the sliding rod.

[0013] As one technical solution of this application, the top of the workbench is provided with a feeding mechanism for intermittently conveying the pump head.

[0014] The advantages of this utility model compared to the prior art are:

[0015] This application utilizes a cylinder to drive the first sleeve downwards. During this process, the first sleeve drives the guide rod through the spring inside the guide hole and continues to extend downwards until the guide rod is fully inserted into the pump head. Subsequently, the bottom of the first sleeve contacts the top of the second sleeve and applies pressure, forcing the second sleeve to move downwards along the central axis of the guide rod. This continues until the second sleeve presses the spring inside the guide hole into the pump head, thus achieving precise spring installation. This method effectively avoids the problem of bending deformation of the spring due to uneven force during installation, thereby ensuring the assembly quality of the pump head. Attached Figure Description

[0016] Figure 1 This is a three-dimensional diagram of a multi-functional spring assembly device for a plastic pump head.

[0017] Figure 2 This is a top view of a multi-functional spring assembly device for a plastic pump head.

[0018] Figure 3 yes Figure 2 Sectional view at point AA.

[0019] Figure 4 This is a three-dimensional view of the limiting guide mechanism in a multifunctional spring assembly device for a plastic pump head.

[0020] Figure 5 This is a three-dimensional view of a guide rod in a multifunctional spring assembly device for a plastic pump head.

[0021] Figure 6 This is a cross-sectional view of a guide rod in a multifunctional spring assembly device for a plastic pump head.

[0022] Figure 7 This is an exploded view of the feeder in a multifunctional spring assembly device for a plastic pump head.

[0023] Figure 8 yes Figure 3 A magnified structural diagram of point B in the diagram.

[0024] The following are the labels in the diagram: 1. Workbench; 11. Feeding mechanism; 2. Support; 21. First sliding sleeve; 3. Limiting and guiding mechanism; 31. Movable frame; 32. Second sliding sleeve; 33. Limiting element; 34. Sliding rod; 35. First elastic element; 36. Mounting seat; 4. Cylinder; 51. First sleeve; 52. Guide rod; 53. Second sleeve; 54. Second elastic element; 55. First return spring; 6. Feeder; 61. Guide hole; 62. Feed pipe; 63. Mounting groove; 64. Pin; 65. Anti-detachment block; 66. Second return spring. Detailed Implementation

[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0026] See Figures 1-8 As shown, a multifunctional spring assembly device for a plastic pump head includes a workbench 1, a support 2 mounted on the top of the workbench 1, a limiting guide mechanism 3 mounted on the top of the support 2 capable of longitudinal reciprocating movement, and a feeder 6 longitudinally mounted at the bottom of the limiting guide mechanism 3. The feeder 6 has a guide hole 61 longitudinally arranged inside, and a feed pipe 62 inclined on one side of the feeder 6 that communicates with the inside of the guide hole 61. A second sleeve 53, capable of longitudinally moving along the inside of the guide hole 61, is mounted on the top of the feeder 6. A second elastic element 54 is mounted on the outside of the second sleeve 53, and the second elastic element 54 can drive the second sleeve 53 to reset. A guide rod 52, capable of longitudinal movement, is mounted inside the second sleeve 53. A cylinder 4 is mounted on the top of the support 2, and the output end of the cylinder 4 is fixed to the first sleeve 51. The top end of the guide rod 52 is installed inside the first sleeve 51. A first reset spring 55, used to push the guide rod 52 to reset, is mounted inside the first sleeve 51.

[0027] During spring installation, the spring first enters the feeder 6 through the feed pipe 62 and is vertically placed in the guide hole 61. Then, the cylinder 4 is activated, and its output end begins to extend and retract. At this time, the first sleeve 51 installed at the output end of the cylinder 4 moves downwards. Simultaneously, the guide rod 52 installed at the bottom of the first sleeve 51 also moves downwards. During the downward movement of the guide rod 52, its bottom end passes through the spring and continues to extend downwards until it inserts into a pre-set spring groove inside the pump head. At this point, the downward movement of the guide rod 52 temporarily stops due to the contact between its bottom end and the spring groove inside the pump head. However, the cylinder 4 continues to drive the first sleeve 51 downwards. As the bottom end of the first sleeve 51 gradually approaches and presses down on the top end of the second sleeve 53, the second sleeve 53 is forced to move downwards. When the bottom end of the second sleeve 53 contacts the top end of the spring and applies pressure, the second sleeve 53 pushes the spring downwards along the central axis of the guide rod 52. This process continues until the spring is fully inserted into the spring groove inside the pump head. This effectively prevents the spring from bending and deforming due to uneven force during installation, thus ensuring the assembly quality of the pump head.

[0028] See Figure 7 and Figure 8 As shown, two sets of anti-detachment blocks 65 are hinged on both sides of the bottom of the feeder 6, which can move closer to or further away from each other.

[0029] When the spring is compressed by the second sleeve 53, it moves downwards. As the bottom end of the spring gradually approaches and enters between the two sets of anti-detachment blocks 65, the compression of the anti-detachment blocks 65 by the spring causes the two sets of anti-detachment blocks 65 to separate from each other. This provides a sufficient channel for the spring to pass smoothly between the two sets of anti-detachment blocks 65.

[0030] See Figure 7 and Figure 8 As shown, the feeder 6 has mounting grooves 63 on both sides of the bottom for mounting anti-detachment blocks 65. The mounting grooves 63 have horizontal pins 64 inside, and the anti-detachment blocks 65 are movably mounted on the pins 64.

[0031] When the anti-detachment block 65 is compressed by the spring, the two sets of anti-detachment blocks 65 will rotate axially along the central axis of the pin 64. As the anti-detachment blocks 65 rotate along the pin 64, the corresponding contact surfaces of the two sets of anti-detachment blocks 65 will gradually separate until the two sets of anti-detachment blocks 65 are completely separated, providing sufficient space for the spring to pass through. At the same time, the tops of the two sets of anti-detachment blocks 65 will gradually approach the inner wall of the mounting groove 63 and exert a compressive force on the second return spring 66. This causes the second return spring 66 to deform, thereby accumulating elastic potential energy.

[0032] See Figure 7 and Figure 8 As shown, two sets of second reset springs 66 are horizontally arranged on both sides of the mounting groove 63 for pushing the anti-detachment block 65 to reset.

[0033] After the spring successfully passes through the two sets of anti-detachment blocks 65, the compressive force originally applied to the second return spring 66 will disappear. At this time, the second return spring 66 begins to release its previously accumulated elastic potential energy. With the release of elastic potential energy, the second return spring 66 generates a restoring force and pushes the anti-detachment blocks 65 to rotate in the opposite direction along the pin 64. This causes the corresponding surfaces of the two sets of anti-detachment blocks 65 to gradually approach each other until they close again, thus returning to the initial state.

[0034] See Figure 4 As shown, the limiting guide mechanism 3 includes a movable frame 31 horizontally mounted on the first sleeve 51. Second sliding sleeves 32 are installed at both ends of the movable frame 31. A sliding rod 34 is slidably installed inside the second sliding sleeve 32. A limiting member 33 is fixed on the outside of the sliding rod 34 for it to fall out of the second sliding sleeve 32. The limiting member 33 is located at the top of the sliding rod 34.

[0035] As the cylinder 4 drives the first sleeve 51 downwards, the first sleeve 51 synchronously moves the movable frame 31. To ensure the stability of the slide rod 34 during movement, the slide rod 34 is installed inside the second sliding sleeves 32 at both ends of the movable frame 31. Simultaneously, a limiting member 33 is provided on the outside of the slide rod 34 for fixation. When the slide rod 34 descends with the movable frame 31, the bottom of the limiting member 33 contacts the upper surface of the movable frame 31, effectively preventing the slide rod 34 from accidentally falling out of the second sliding sleeve 32.

[0036] See Figure 4 As shown, a mounting base 36 for mounting the feeder 6 is horizontally provided at the bottom end of the slide rod 34; a first elastic element 35 for pushing the mounting base 36 to move longitudinally is sleeved on the slide rod 34.

[0037] To further improve the stability and accuracy of the system, a first elastic element 35 is installed on the outside of the slide bar 34. When the movable frame 31 is driven by the cylinder 4, it applies a downward thrust to the mounting base 36 through the first elastic element 35, causing the mounting base 36 to move downwards synchronously. As the mounting base 36 moves downwards, the feeder 6 at the bottom of the mounting base 36 is also driven downwards until the anti-detachment block 65 at the bottom of the feeder 6 contacts the pump head. During this process, the guide hole 61 inside the feeder 6 matches the preset spring groove on the pump head. This ensures that the spring can accurately enter the preset spring groove, thereby improving the accuracy and reliability of the entire installation process.

[0038] See Figure 1 , Figure 3 and Figure 4 As shown, the top of the bracket 2 is provided with first sliding sleeves 21 on both sides near the limiting guide mechanism 3, which can slide and cooperate with the slide rod 34, and the second elastic element 54 is slidably disposed on the slide rod 34.

[0039] During the longitudinal movement of the slide rod 34, to ensure its stability, the slide rod 34 will slide longitudinally along the inside of the first sliding sleeve 21. The first sliding sleeve 21 provides a stable guide path for the slide rod 34, thereby effectively preventing the slide rod 34 from deviating during longitudinal sliding.

[0040] See Figure 1 and Figure 2 As shown, a feeding mechanism 11 for intermittently conveying pump heads is provided on the top of the workbench 1.

[0041] A feeding mechanism 11 is installed at the top of the workbench 1. The feeding mechanism 11 contains a conveyor belt for holding the pump heads. A stepper motor is installed on one side of the feeding mechanism 11 to drive the conveyor belt in intermittent movement. When the stepper motor starts, the pulley at the output end of the stepper motor drives the conveyor belt in intermittent motion. This allows the conveyor belt to intermittently move the pump heads placed on it. Specifically, each time the conveyor belt stops, the pump heads on the conveyor belt are precisely positioned directly below the feeder 6, ensuring smooth subsequent assembly processes.

[0042] In operation, the feeding mechanism 11 intermittently moves the pump head via an internal conveyor belt, ensuring that the pump heads placed on the conveyor belt are directly below the feeder 6 when the conveyor belt stops. The spring then enters the guide hole 61 through the feed pipe 62 and is stored vertically. Subsequently, the cylinder 4 is activated, and its output end extends, driving the first sleeve 51 and the bottom guide rod 52 downwards synchronously. The guide rod 52 passes through the spring and inserts into the spring groove inside the pump head. At this time, the cylinder 4 continues to drive the first sleeve 51 downwards, forcing the second sleeve 53 to move downwards and contact the top of the spring, pushing the spring downwards along the central axis of the guide rod 52 until the spring is fully inserted into the spring groove, preventing bending and deformation. During the downward movement of the spring, the two sets of anti-detachment blocks 65 are compressed by the spring and rotate axially along the central axis of the pin 64, gradually separating to provide space for the spring to pass through. Simultaneously, the top of the anti-detachment block 65 approaches the inner wall of the mounting groove 63 and compresses the second return spring 66, causing the second return spring 66 to accumulate elastic potential energy. After the spring passes, the second reset spring 66 releases its potential energy, pushing the anti-detachment block 65 to rotate in the opposite direction and close again. To ensure the stability of the slide rod 34, the slide rod 34 is installed inside the second sliding sleeve 32 at both ends of the movable frame 31 and is fixed by a limiting member 33. When the cylinder 4 drives the movable frame 31 downward, the slide rod 34 slides longitudinally along the inside of the first sliding sleeve 21 to avoid deviation. At the same time, the movable frame 31 pushes the mounting base 36 and the feeder 6 at the bottom to move downward synchronously through the first elastic member 35 until the feeder 6 contacts the pump head. During this process, the guide hole 61 is matched with the spring groove preset in the pump head to ensure that the spring accurately enters the spring groove, improving installation accuracy and reliability.

[0043] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A multifunctional spring assembly device for a plastic pump head, comprising a worktable (1), a bracket (2) disposed on the top of the worktable (1), a limiting guide mechanism (3) disposed on the top of the bracket (2) and capable of longitudinal reciprocating movement, and a feeder (6) longitudinally disposed at the bottom of the limiting guide mechanism (3), characterized in that, The feeder (6) has a guide hole (61) arranged longitudinally inside, and a feed pipe (62) that can communicate with the inside of the guide hole (61) is arranged obliquely on one side of the feeder (6); a second sleeve (53) that can move longitudinally along the inside of the guide hole (61) is arranged on the top of the feeder (6), and a second elastic element (54) is arranged on the outside of the second sleeve (53), which can drive the second sleeve (53) to reset; a guide rod (52) that can move longitudinally is arranged inside the second sleeve (53); a cylinder (4) is arranged on the top of the bracket (2), and the output end of the cylinder (4) is fixed to the first sleeve (51), and the top end of the guide rod (52) is installed inside the first sleeve (51); a first reset spring (55) for pushing the guide rod (52) to reset is arranged inside the first sleeve (51).

2. The multifunctional spring assembly device for a plastic pump head according to claim 1, characterized in that, The feeder (6) has two sets of anti-detachment blocks (65) hinged on both sides of its bottom, which can move closer to or further away from each other.

3. The multifunctional spring assembly device for a plastic pump head according to claim 1, characterized in that, The feeder (6) has mounting grooves (63) on both sides of its bottom for mounting anti-detachment blocks (65). The mounting grooves (63) are horizontally arranged with pins (64) inside, and the anti-detachment blocks (65) are movably mounted on the pins (64).

4. The multifunctional spring assembly device for a plastic pump head according to claim 3, characterized in that, Two sets of second reset springs (66) are horizontally arranged on both sides of the mounting groove (63) for pushing the anti-detachment block (65) to reset.

5. The multifunctional spring assembly device for a plastic pump head according to claim 1, characterized in that, The limiting and guiding mechanism (3) includes a movable frame (31) horizontally mounted on the first sleeve (51), with second sliding sleeves (32) installed at both ends of the movable frame (31), and a sliding rod (34) slidably mounted inside the second sliding sleeve (32). A limiting member (33) for disengaging from the inside of the second sliding sleeve (32) is fixed on the outside of the sliding rod (34), and the limiting member (33) is located at the top of the sliding rod (34).

6. The multifunctional spring assembly device for a plastic pump head according to claim 5, characterized in that, The bottom end of the slide rod (34) is horizontally provided with a mounting seat (36) for installing the feeder (6); a first elastic element (35) for pushing the mounting seat (36) to move longitudinally is sleeved on the slide rod (34).

7. A multifunctional spring assembly device for a plastic pump head according to claim 5, characterized in that, The top of the bracket (2) is provided with a first sliding sleeve (21) on both sides near the limiting guide mechanism (3) that can slide with the slide rod (34), and the second elastic element (54) is slidably disposed on the slide rod (34).

8. The multifunctional spring assembly device for a plastic pump head according to claim 1, characterized in that, The top of the workbench (1) is provided with a feeding mechanism (11) for intermittently conveying the pump head.

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